[recall]

It depends on what kind of setup you are recording.

I tracked in a similar room last summer. It was a folk setup:

acoustic guitar
male vox

female vox

I miced them up as normal with them kind of 65 degrees facing each other

stood back a few feet and placed my m/s setup where I thought it sounded best to capture the natual acoustic of the room.

It was a small living room with marble floor but plenty of diffusion.

I got a really cool close and intimate natural recording using this method.